Fig. 8

Variation of collapse pressure with circumferential angle and azimuth angle: (a) deviation angle 0°; (b) deviation angle 30°; (c) deviation angle 60°; (d) deviation angle 90°.

Variation of collapse pressure with circumferential angle and azimuth angle: (a) deviation angle 0°; (b) deviation angle 30°; (c) deviation angle 60°; (d) deviation angle 90°.